<div class="html-element">
    <div class="flex-container">
        <div class="in_port field_name">
            <% for(var i = 0; i < rowLevel; i++) { %>
                <div class="d-inline row-placeholder">&#9643;</div>
            <% } %>
            <div class="d-inline row-expander pl-1 pr-1">
                <i class="fas fa-caret-right"></i>
            </div>
            <span></span>
        </div>
        <div class="out_port">
            <div class="field_constraints"><span></span></div>
            <div class="field_date_type"><span></span></div>
        </div>
    </div>
</div>